package com.study.vo;

import com.study.bean.car.CartItem;
import lombok.Data;
import lombok.experimental.Accessors;

import java.io.Serializable;
import java.math.BigDecimal;
import java.util.List;

/**
 * 尚硅谷电商 购物车.重写get，保证每次获取都计算
 */
@Data
@Accessors(chain = true)
public class Car implements Serializable {

    List<CartItem> items;

    private Integer countNum;//商品数量
    private Integer countType;//商品类型

    private BigDecimal totalAmount;//总价

    private BigDecimal reduce = new BigDecimal("0.00");//减免价格

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountNum() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += item.getCount();
            }
        }
        return count;
    }


    public Integer getCountType() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += 1;
            }
        }
        return count;
    }


    public BigDecimal getTotalAmount() {

        BigDecimal amout = new BigDecimal("0");
        //计算购物项总价
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                if (item.isCheck()) {
                    amout = amout.add(item.getTotalPrice());
                }
            }
        }
        amout = amout.subtract(getReduce());
        return amout;
    }


    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
